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🌊 Marine Least Concern 🌡️ Subtropical

Yellowmouth Jawfish

Opistognathus nothus Vaniz, 1997
Max Length
7.9 cm
Max Weight
Lifespan
Trophic Level
3.4
Depth
92–100 m
Climate
Subtropical
Resilience
Vulnerability
10.00/100
Typical Length
Depth Zone
demersal

📖 Overview

Yellowmouth Jawfish (Opistognathus nothus) is a ray-finned fish of the family Opistognathidae. It inhabits marine (saltwater) waters in benthic environments. This species can reach a maximum total length of 7.9 cm. It occurs at depths between 92 and 100 metres. With a trophic level of 3.4, it is a low-level carnivore, feeding on invertebrates and small organisms. It is assessed as Least Concern on the IUCN Red List.

Scientific Name
Opistognathus nothus
Authority
Vaniz, 1997
Habitat
Marine
Climate
Subtropical
Body Shape
Elongated
IUCN Status
LC
Max Length
7.9 cm
Depth Range
92–100 m
Trophic Level
3.4
Vulnerability
10.00/100
Salinity
30–40 ppt

🐟 Physical Description

Dorsal spines (total): 10; Dorsal soft rays (total): 14; Anal spines: 2; Anal soft rays: 13; Vertebrae: 28. Anterior nostril a short tube without cirrus on posterior rim; posterior end of maxilla rigid, not produced as a thin flexible lamina; coronoid process of articular hatchet-shaped with dorsal margin straight; vomer edentate; inner lining of maxilla and adjacent membranes with conspicuous black stripe; spinous dorsal fin without an ocellus; segmented dorsal and anal fin rays 14 and 13 respectively; caudal vertebrae 18 .: elongated.

🌀 Behaviour

Behavioural data for Yellowmouth Jawfish is currently being reviewed.

🦐 Diet

Diet information for Yellowmouth Jawfish is currently being compiled.

🥚 Reproduction

Reproduction data for Yellowmouth Jawfish is currently being compiled.

🌍 Habitat & Distribution

Marine; demersal; depth range 92 - 100 m . Subtropical Central Atlantic: off North Carolina (USA), Gulf of Mexico, and Cuba.

🌿 Ecology

Zone Preferences
🌊 Marine ⬇️ Benthic
Trophic Level
3.4±0.6

📐 Morphometrics

Length–Weight Relationship: W = 0.00389 × L3.12 (TL)
Max TL
7.9cm
Dorsal Spines
10
Dorsal Rays
14
Anal Spines
2
Anal Rays
13
Vertebrae
28

🌡️ Water Parameters & Tolerance

Salinity Range
30–40ppt

🛡️ Conservation Assessment

IUCN Category
Least Concern
Assessment Date
2012

📊 Population Risk & Fisheries

Fishing Vulnerability
10.00/100
Low vulnerability
Trophic Level
3.4
Predator
Body Shape
Elongated
Climate Zone
Subtropical
Described By
Vaniz, 1997

🌐 Names & Taxonomy

Language Common Names
🇬🇧English Yellowmouth Jawfish
🌍CES studnař kubánský
🇵🇹Portuguese Bocão-mimico
🇪🇸Spanish bocón boca amarilla · guardián boca amarilla

🗺️ Global Occurrence Map

Occurrence records from the Global Biodiversity Information Facility (GBIF) — 1 records indexed .

Occurrence density from GBIF View GBIF records ↗

👥 Community & Contribute

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